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Design and Fabrication of Pellet Fuel Rods Clad With Thin Wall Stainless Steel
Summary: Stainless steel clad nuclear fuel cycle costs can be reduced to those associated with Zircaloy clad fuel or potentially lower by reducing the thickness of the clad tube wall until performance penalties offset the savings associated with the reduction in parasitic neutron absorption. To demonstrate the feasibility and investigate performance capabilities of thin clad fuel rods for power reactor application an assembly was fabricated with 0.0127 cm (5 mil) thick stainless steel cladding tubes for irradiation testing in the Vallecitos Boiling Water Reactor (VBWR). The fuel bundle was placed in the VBWR and irradiation was begun in November, 1961. The irradiation is scheduled to continue until the target exposure of 2.74 x 10(20) fissions/cc (10,000 MWD/T of uranium) average burnup is reached. Destructive examinations of fuel rods will be performed at regular intervals throughout life to determine fuel rod performance.
Date:
February 1964
Creator:
Hoffmann, J. P.
Object Type:
Report
System:
The UNT Digital Library
Motor.
Patent for a new and improved motor. This design consists "[i]n a fan motor, the V-shaped frame, the shafts journaled in the upper corners thereof, the ratchet-wheels and spur-wheels secured to said shafts, the spring-actuated pawls pivoted to the frame and engaging the ratchet-wheels, sleeves loose on shafts, and having the spur-wheels fast to said sleeves, the volute springs with their inner ends fast to shafts and their outer ends fast to wheels, the winding-shafts having the pinions engaging wheels, the shaft between [the other] shafts having the pinion, engaging wheels" (lines 19-30).
Date:
February 5, 1889
Creator:
Heinsohn, Ernst Theodor & Hoffmann, John
Object Type:
Patent
System:
The Portal to Texas History
Water and Wastewater Polishing Using 3M Selective Separation Remediation Cartridge Technology
3M has developed technology for selectively removing trace levels of dissolved contaminant materials from liquids using systems operating at flow rates up to 50 gallons per minute. This technology combines active particle chemistries with a particle-loaded membrane to achieve a new medium for liquid waste processing--a spiral wound filter cartridge. This technology has shown success by generating high decontamination factors and reducing contaminants to part per trillion levels. The spiral wound cartridge offers simplified installation, convenient replacement, and clean, easy disposal of a concentrated waste. By incorporating small, high surface area particles (5 to 80 microns) into a sturdy, yet porous, membrane greater removal efficiencies of even trace contaminants can be achieved at higher flow rates than with conventional column systems. In addition, the captive-particle medium prevents channeling of liquids and insures uniform flow across the sorbing particle surface. The cartridges fit into standard, commercially-available housings and whole system capital costs are substantially lower than those of column or reverse osmosis systems. Developmental work at high degrees of water polishing have included removal of mercury from contaminated wastewater, various radionuclides from process water, and organometallic species from surface water discharges. Laboratory testing and on-site demonstration data of these applications show …
Date:
February 25, 2002
Creator:
Hoffmann, Keith M.; Scanlan, Thomas J. & Seely, David C.
Object Type:
Article
System:
The UNT Digital Library
Magnetic Profiles in Ferromagnetic/Superconducting Superlattices.
The interplay between ferromagnetism and superconductivity has been of longstanding fundamental research interest to scientists, as the competition between these generally mutually exclusive types of long-range order gives rise to a rich variety of physical phenomena. A method of studying these exciting effects is by investigating artificially layered systems, i.e. alternating deposition of superconducting and ferromagnetic thin films on a substrate, which enables a straight-forward combination of the two types of long-range order and allows the study of how they compete at the interface over nanometer length scales. While originally studies focused on low temperature superconductors interchanged with metallic ferromagnets, in recent years the scope has broadened to include superlattices of high T{sub c} superconductors and colossal magnetoresistance oxides. Creating films where both the superconducting as well as the ferromagnetic layers are complex oxide materials with similar crystal structures (Figure 1), allows the creation of epitaxial superlattices, with potentially atomically flat and ordered interfaces.
Date:
February 28, 2007
Creator:
te Velthuis, S. G. E.; Hoffmann, A.; Santamaria, J.; Division, Materials Science & Madrid, Univ. Complutense de
Object Type:
Report
System:
The UNT Digital Library
Effluent testing for the Oak Ridge Toxic Substances Control Act mixed waste incinerator emissions tests of January 16 and 18, 1991
On January 16 and 18, 1991, special emissions tests were conducted at the Oak Ridge, K-25 Site Toxic Substances Control Act (TSCA) Incinerator. Both tests were approximately 6 h long and were performed at TSCA temperatures [1200{degrees}C, secondary combustion chamber (SSC)]. Liquid feed and effluent samples were collected every 30 min. A filter was used to collect particles from stack gases to study morphology and composition during the first test. Isokinetic air samples were also taken during the second test. Metals emissions from the second test were evaluated using the Environmental Protection Agency (EPA) Method 5 sampling train. The aqueous waste was collected and fed in batches to the Central Neutralization Facility (CNF), where it was treated by iron coprecipitation and polymer flocculation and data were collected. In the first test (1-16-91), the aqueous and organic wastes were fed directly to the kiln or primary combustion chamber (PCC). In the second test (1-18-91), the remaining organic waste from the first test was fed into the SSC, and other organic waste was fed into the PCC. One objective of the two tests was to determine if feeding the same organic waste into the two combustion chambers made a difference in a …
Date:
February 1, 1992
Creator:
Shor, J. T.; Bostick, W. D.; Coroneos, A. C.; Bunch, D. H.; Gibson, L. V.; Hoffmann, D. P. et al.
Object Type:
Report
System:
The UNT Digital Library
Neutron Scattering Studies of Nanomagnetism and Artificially Structured Materials
Nanostructured magnetic materials are intensively studied due to their unusual properties and promise for possible applications. The key issues in these materials relate to the connection between their physical properties (transport, magnetism, mechanical, etc.) and their chemical-physical structure. In principle, a detailed knowledge of the chemical and physical structure allows calculation of their physical properties. Theoretical and computational methods are rapidly evolving so that magnetic properties of nanostructured materials might soon be predicted. Success in this endeavor requires detailed quantitative understanding of the magnetic structure and properties.
Date:
February 1, 2003
Creator:
Fitzsimmons, M. R.; Bader, S. D.; Borchers, J. A.; Felcher, G. P.; Furdyna, J. K.; Hoffmann, A. et al.
Object Type:
Article
System:
The UNT Digital Library
Effluent testing for the Oak Ridge Toxic Substances Control Act mixed waste incinerator emissions tests of January 16 and 18, 1991
On January 16 and 18, 1991, special emissions tests were conducted at the Oak Ridge, K-25 Site Toxic Substances Control Act (TSCA) Incinerator. Both tests were approximately 6 h long and were performed at TSCA temperatures (1200{degrees}C, secondary combustion chamber (SSC)). Liquid feed and effluent samples were collected every 30 min. A filter was used to collect particles from stack gases to study morphology and composition during the first test. Isokinetic air samples were also taken during the second test. Metals emissions from the second test were evaluated using the Environmental Protection Agency (EPA) Method 5 sampling train. The aqueous waste was collected and fed in batches to the Central Neutralization Facility (CNF), where it was treated by iron coprecipitation and polymer flocculation and data were collected. In the first test (1-16-91), the aqueous and organic wastes were fed directly to the kiln or primary combustion chamber (PCC). In the second test (1-18-91), the remaining organic waste from the first test was fed into the SSC, and other organic waste was fed into the PCC. One objective of the two tests was to determine if feeding the same organic waste into the two combustion chambers made a difference in a …
Date:
February 1, 1992
Creator:
Shor, J. T. (info:Oak Ridge National Lab., TN (United States)); Bostick, W. D.; Coroneos, A. C.; Bunch, D. H.; Gibson, L. V.; Hoffmann, D. P. et al.
Object Type:
Report
System:
The UNT Digital Library
A theoretical study of M–M′ polar-covalent bonding in heterobimetallic multinuclear organometallic complexes of monovalent group 11 metal centres
Article describes how complexes with closed-shell (d10–d10) interactions have been studied for their interesting luminescence properties in organic light-emitting diode (OLED) devices. The present computational study aims at understanding the chemical bonding/interactions in a series of molecules with unusually short metal–metal bond distances between monovalent coinage-metal (d10–d10) centres.
Date:
February 8, 2023
Creator:
Rabaâ, Hassan; Sundholm, Dage & Omary, Mohammad A.
Object Type:
Article
System:
The UNT Digital Library
Brenham Daily Banner-Press (Brenham, Tex.), Vol. 42, No. 263, Ed. 1 Wednesday, February 3, 1926
Daily newspaper from Brenham, Texas that includes local, state, and national news along with extensive advertising.
Date:
February 3, 1926
Creator:
Robertson, Ruby
Object Type:
Newspaper
System:
The Portal to Texas History
The Ranger (San Antonio, Tex.), Vol. 78, No. 14, Ed. 1 Friday, February 6, 2004
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
February 6, 2004
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
The Rattler (San Antonio, Tex.), Vol. 15, No. 9, Ed. 1 Thursday, February 8, 1934
Semi-monthly student newspaper from St. Mary's University in San Antonio, Texas that includes campus news along with advertising.
Date:
February 8, 1934
Creator:
St. Mary's University (San Antonio, Tex.)
Object Type:
Newspaper
System:
The Portal to Texas History
The Ranger (San Antonio, Tex.), Vol. 68, No. 17, Ed. 1 Friday, February 19, 1993
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
February 19, 1993
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
DOE EPSCoR Initiative in Structural and computational Biology/Bioinformatics
The overall goal of the DOE EPSCoR Initiative in Structural and Computational Biology was to enhance the competiveness of Vermont research in these scientific areas. To develop self-sustaining infrastructure, we increased the critical mass of faculty, developed shared resources that made junior researchers more competitive for federal research grants, implemented programs to train graduate and undergraduate students who participated in these research areas and provided seed money for research projects. During the time period funded by this DOE initiative: (1) four new faculty were recruited to the University of Vermont using DOE resources, three in Computational Biology and one in Structural Biology; (2) technical support was provided for the Computational and Structural Biology facilities; (3) twenty-two graduate students were directly funded by fellowships; (4) fifteen undergraduate students were supported during the summer; and (5) twenty-eight pilot projects were supported. Taken together these dollars resulted in a plethora of published papers, many in high profile journals in the fields and directly impacted competitive extramural funding based on structural or computational biology resulting in 49 million dollars awarded in grants (Appendix I), a 600% return on investment by DOE, the State and University.
Date:
February 21, 2008
Creator:
Wallace, Susan S.
Object Type:
Report
System:
The UNT Digital Library
Oak Ridge K-25 Site Technology Logic Diagram. Volume 3, Technology evaluation data sheets; Part A, Characterization, decontamination, dismantlement
The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration and waste management problems at the Oak Ridge K-25 Site to potential technologies that can remediate these problems. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remedial action, and decontamination and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This report is part A of Volume 3 concerning characterization, decontamination, and dismantlement.
Date:
February 26, 1993
Creator:
Fellows, R. L.
Object Type:
Report
System:
The UNT Digital Library
Oak Ridge K-25 Site Technology Logic Diagram
The Oak Ridge K-25 Technology Logic Diagram (TLD), a decision support tool for the K-25 Site, was developed to provide a planning document that relates environmental restoration and waste management problems at the Oak Ridge K-25 Site to potential technologies that can remediate these problems. The TLD technique identifies the research necessary to develop these technologies to a state that allows for technology transfer and application to waste management, remedial action, and decontamination and decommissioning activities. The TLD consists of four separate volumes-Vol. 1, Vol. 2, Vol. 3A, and Vol. 3B. Volume 1 provides introductory and overview information about the TLD. Volume 2 contains logic diagrams. Volume 3 has been divided into two separate volumes to facilitate handling and use. This report is part A of Volume 3 concerning characterization, decontamination, and dismantlement.
Date:
February 26, 1993
Creator:
Fellows, R.L. (ed.)
Object Type:
Report
System:
The UNT Digital Library
Chemical Speciation of Inorganic Compounds under Hydrothermal Conditions
Measurements of oxidation. These spectra are to the best of our knowledge the first reported in situ spectroscopic observation of homogeneous aqueous redox chemistry at temperatures beyond the critical temperature of waste. We also observed a time-dependence for the growth of the Cr(VI) XANES peak and have therefore obtained both kinetic information as well as structural information on the reactants and products at the reaction temperature. We feel that these new techniques, when employed on actual waste components will elucidate the underlying chemistry.
Date:
February 21, 2002
Creator:
Stern, Edward A. & Fulton, John
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report: DE-FG03-01ER63099/DE-FG02-01ER63099
Organic material contributes {approx}20-50% to the total fine aerosol mass at continental mid-latitudes (Saxena and Hildemann, 1996; Murphy et al., 1998; Peterson and Tyler, 2002; Putaud et al., 2004) and as much as 90% in tropical forested areas (Andreae and Crutzen, 1997; Artaxo et al., 2002). Significant amounts of carbonaceous aerosols are also observed in the free troposphere (Heald et al., 2005). A substantial fraction of the organic component of atmospheric particles consists of water-soluble, possibly multifunctional compounds (Saxena and Hildemann, 1996; Kavouras et al., 1998). It is critical that we understand how organic aerosols and their precursors are transformed in the atmosphere and the dependence of the transformation on the chemical and thermodynamic conditions of the ambient environment: (1) to accurately forecast how changing emissions will impact atmospheric organic aerosol concentrations and properties on the regional to global scale, and (2) to relate atmospheric measurements to sources. A large (but as yet unquantified) fraction of organic aerosol is formed in the atmosphere by precursor gases. In addition, both primary and secondary organic aerosol interact with other gas and aerosol species in the atmosphere so that their properties (i.e., size, hygroscopicity, light absorption and scattering sphere efficiency) can change significantly …
Date:
February 23, 2005
Creator:
Seinfeld, John H.
Object Type:
Report
System:
The UNT Digital Library
The Lampasas Daily Leader. (Lampasas, Tex.), Vol. 5, No. 1532, Ed. 1 Monday, February 15, 1909
Daily newspaper from Lampasas, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 1909
Creator:
Vernor, J. E.
Object Type:
Newspaper
System:
The Portal to Texas History
Design and Analysis of Salmonid Tagging Studies in the Columbia Basin, Volume XXI; A Summary of Methods for Conducting Salmonid Fry Mark-Recapture Studies for Estimating Survival in Tributaries, Technical Report 2005-2006.
Productivity and early fry survival can have a major influence on the dynamics of fish stocks. To investigate the early life history of fish, numerous methods have been developed or adapted to these much smaller fish. Some of the marking techniques provide individual identification; many others, only class identification. Some of the tagging techniques require destructive sampling to identify a mark; other methods permit benign examination and rerelease of captured fish. Sixteen alternative release-recapture designs for conducting fry survival investigations were examined. Eleven approaches were found capable of estimating survival parameters; five were not. Of those methods capable of estimating fry survival, five required unique marks, four required batch-specific marks, and two approaches required remarking and rereleasing captured fry. No approach based on a simple batch mark was capable of statistically estimating survival.
Date:
February 1, 2007
Creator:
Skalski, John
Object Type:
Report
System:
The UNT Digital Library
Brenham Daily Banner. (Brenham, Tex.), Vol. 15, No. 33, Ed. 1 Friday, February 7, 1890
Daily newspaper from Brenham, Texas that includes local, state and national news along with extensive advertising.
Date:
February 7, 1890
Creator:
Garrett, O. H. P.
Object Type:
Newspaper
System:
The Portal to Texas History
The Ranger (San Antonio, Tex.), Vol. 72, No. 14, Ed. 1 Friday, February 7, 1997
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
February 7, 1997
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
The Lampasas Daily Leader. (Lampasas, Tex.), Vol. 6, No. 1836, Ed. 1 Tuesday, February 8, 1910
Daily newspaper from Lampasas, Texas that includes local, state, and national news along with advertising.
Date:
February 8, 1910
Creator:
Vernor, J. E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Ranger (San Antonio, Tex.), Vol. 61, No. 14, Ed. 1 Friday, February 6, 1987
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
February 6, 1987
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
Galveston Tribune. (Galveston, Tex.), Vol. 32, No. 74, Ed. 1 Tuesday, February 20, 1912
Daily newspaper from Galveston, Texas that includes local, state, and national news along with advertising.
Date:
February 20, 1912
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History